Has anyone seen a simple tutorial or explanation on how to really use the BUSS feature in X2?
I have a couple of sample projects but can't really figure them out. One of the samples has a MIXDOWN slider which appears to only mirror the MASTER so not sure what this is about either.
 

You can use buses in many many ways in Sonar. You can use them for parallel compression, instruemtn groups,  sending tracks to effects, making different sub mixes, and making a headphone mix. There is no right or wrong way to use them when mixing. You just do what ever is needed for that particular song
 
Sends take your signal to a bus. you can send it pre fade or post fade (before or after the track fader)
 
Its just like a hardware mixing board. The only difference is that its on your screen and you use your mouse or control surface to adjust the settings, rather than your fingers.
 
CJ
 

http://www.cakewalk.com/support/kb/reader.aspx/2007013219

I use a MAIN OUT bus for analysis and consistent volume level:

The MAIN OUT bus:
    is the first bus, easy to see,... This is the listening bus   
    controls the monitoring volume sent to the audio device
    does NOT have "effects." And no envelopes
    has monitoring tools: Voxengo Span, vintage meter, Panipulator
 
The MASTER MIX bus is next, it is used for bounces, exports,....  ALL final effects are in the bin.
 
This bus is output to the MAIN OUT bus.
 
The MASTER MIX bus may have volume envelopes for fades and misc. adjustments.
 
"Bounce to tracks" mixes and Export from the MASTER MIX bus.
----------------
Only two buses feed the MASTER MIX bus:  VOCALS ALL, and INSTRUMENTS ALL.
 
I follow this logic for all instruments as well. Each has its final bus feeding INSTRUMENTS ALL. This provide quick adjustment for each grouping: muting, volume, EQ, effects,...
 
(I have track templates to create all or some of the various instrument buses: strings, purc, piano,...)
---------------------
For bounces::
I add at least two blank tracks labeled MIX1 and MIX2, to projects. These output to the MAIN OUT. NOT
directly to the sound device.
I change the name of the mix tracks (and add the date) BEFORE bouncing-to-tracks so the created wav file will have a name that reflects the name of the track. This is useful.
 
I then solo the mix track to listen to the mix(s). Which is routed through the MAIN OUT bus.
And all the analysis tools are the same, and quick to open.
 
Since the mix tracks are output to the MAIN OUT bus, there is no need to bypass the effects/eq, or change the volume setting of the MASTER MIX bus when listening to a mix track.
 
And because the MAIN OUT bus volume is the same, I can compare, audibly and visually, the mix with the original tracks.
 
((Per CJ's insight, if the bounced track/mix does not sound correct, before I do anything else, I use
control-z (undo) to remove the mix clip, and the wav file from the disk. This means I have fewer
orphaned audio files.))
 
Simplified example:
http://logicalarts.com/temp/SonarRouting0913c.jpg
 

 
 

crosstrax - there's a very good tutorial also available from Groove3.

I had a post not long ago on a bus method I use, based in part from that tutorial.

Link to my post on bus routing:

http://forum.cakewalk.com...echnique-m2870816.aspx

The Main Outs are not Buses. Lets no confuse them with buses. Main outs are actual outputs for your sound card.
 
This is the flow of the signal:
Tracks -> Buses -> Main outs

My first buss is named MAIN OUT    not outs.
 
I think it important to have quick access to the hardware volume that will not affect the actual volume of the project.
 
I never see, adjust, or change the hardware outputs, which are labeled E-MU Asio sonar out.
 
I will adjust the graphic to be clearest.

The above two posts conflict and are confusing things. 
 
CJ is right.  In Sonar speak "main outs" refer to the hardware outs.  Many of us use the term master buss to refer to the buss that is first and receives all inputs before going to the main outs. The reason I for example place it first is so my Mackie Control will see it as the master buss too. Its even labeled that way. 
 
The main outs should be left at unity.

I will rename my MAIN OUT bus to something not in conflict with the invisible hardware faders, that no one should ever have to look upon.  And, for me, are not labeled as MAIN anything.
 
My first bus controls the hardware.
 
My second bus controls the project's FINAL MIX STATUS.
 
So much for attempting to be reasonable.
 
 
 
 

Jm no they are not named main outs but we use that term to refer to those outs. 
 
There is no right way to set this up. We just have come to a sort of consensus. And like I said for CS usage placing the master buss first makes it easy to configure a CS. If you don't use as a CS than there is no reason to do it that way.
 
Although we may be talking about two different things.
 
The buss pane in the CV is to the left of the main outs pane which has the hardware outs and is visible. So I'm not sure what you mean about a buss being first that controls the hardware. 
 
You can not see the hardware outs in the buss pane in the track view.